On Tue, 20 Oct 1998 20:34:39 -0500, Jim Jones wrote:

>Is there anyone out there using a TRV9 and the DV300 capture card with
>clean success. If So can you let me know. tTen I will know there is hope
>at trying to use the DV300.
>
>After three months of learning and honing I still have a problem that
>refuses to go away.
>
>When I capture up to 2 gig clips ( about 9 min ) using DVTools I am also
>capturing a short high pitched pulse of about two frames in length.
>These get picked up about two to five minutes apart. Recapturing the
>same clip gets the same problem but at different times. A clip under two
>minutes very likely will be clean.
>
>The unwanted sounds are in the captured AVI file but not on the tape. At
>least I can't hear them when playing the tape.
>
>Has any one else had this problem and found a cure?

I've had this happen several times a minute (rarely), or not
at all in 9.5-minute captures (generally). Probably the average
is about once in every 30-35 minutes of capture. I use the
VX-1000 and DPS Spark card, and the pulse is always one frame
wide, full amplitude, negative side only... It is easily removed
by cutting it out of the audio track and substuting a copied
audio frame of similar sound. I'm also curious about the cause
and prevention... (Is it caused by tape drop-out? There is no
picture disturbance at the same time...)